Welcome to our dedicated page for Amkor Tech SEC filings (Ticker: AMKR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Amkor Technology, Inc. (Nasdaq: AMKR) SEC filings page on Stock Titan provides direct access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. Amkor is a U.S.-headquartered outsourced semiconductor assembly and test (OSAT) provider and a global leader in semiconductor packaging and test services. Its filings offer detailed insight into financial performance, capital structure, governance, and major corporate actions.
Investors can review annual reports on Form 10-K and quarterly reports on Form 10-Q (when available) to understand Amkor’s net sales by advanced and mainstream product categories, packaging and test services mix, end-market distribution across communications, computing, automotive, industrial and consumer segments, and key metrics such as gross margin and operating income. These reports also describe risk factors, business operations, and the company’s position in the semiconductor packaging and test industry.
Current reports on Form 8-K document material events, including earnings releases, CEO succession plans, executive appointments, board changes, amendments to credit facilities, and new debt offerings. For example, Amkor has filed 8-Ks describing its 5.875% Senior Notes due 2033, the related indenture terms, and the planned redemption of its 6.625% Senior Notes due 2027, as well as the creation of Term A-1 Loans under its credit agreement.
This page also surfaces information on debt covenants and events of default from indenture-related filings, giving readers visibility into limitations on additional indebtedness, liens, sale-leaseback transactions, and certain corporate restructurings. Where applicable, insider transaction reports on Form 4 and proxy statements on Schedule 14A can be used to analyze executive compensation, ownership, and governance practices.
Stock Titan enhances these filings with AI-powered summaries that highlight key points from lengthy documents, helping readers quickly interpret complex 10-K, 10-Q, and 8-K disclosures. Real-time updates from EDGAR ensure that new filings, including material debt, equity, or governance changes, appear promptly, while AI-generated overviews help users focus on the sections most relevant to Amkor’s semiconductor packaging and test business.
Douglas A. Alexander, a director of Amkor Technology, Inc. (AMKR), received dividend equivalent units that increased his restricted stock unit holdings. The Form 4 reports three accruals of dividend equivalent units (DEUs) on 09/23/2025 tied to time‑vested restricted stock units granted on 05/17/2022, 05/16/2023 and 05/15/2025. Each DEU converts into an additional RSU subject to the same vesting and terms as the underlying award. The reported incremental amounts were 24.3374, 23.7001 and 27.3648 RSUs, bringing the post‑accrual beneficial ownership counts for those grants to 9,204.4883, 8,862.7341 and 9,854.8917 shares of common stock, respectively. These were recorded as acquisitions at $0 price per share because they represent dividend equivalents rather than purchases.
Roger A. Carolin, a director of Amkor Technology, Inc. (AMKR), received dividend equivalent units that increased his restricted stock unit holdings. On 09/23/2025 DEUs were accrued in connection with dividends paid on time-vested RSUs granted on 05/16/2023 and 05/15/2025. The filing reports the accruals as acquisitions of 23.7001 RSUs (related to the 2023 grant) and 27.3648 RSUs (related to the 2025 grant), both with $0 price. After these accruals, the amounts shown as beneficially owned following the transactions are 8,862.7341 and 9,854.8917 shares, respectively. The Form 4 is signed by an attorney-in-fact on behalf of the reporting person and reflects routine equity accruals tied to dividend payments.
Winston J. Churchill, a director of Amkor Technology, Inc. (AMKR), reported on Form 4 that on 09/23/2025 he received 27.3648 restricted stock units as dividend equivalent units related to time‑vested RSUs granted May 15, 2025.
The DEUs were recorded at a price of $0, and following this accrual the reporting person beneficially owns 9,854.8917 shares of common stock on a direct basis. The Form 4 was signed by Mark N. Rogers, attorney‑in‑fact, on 09/25/2025. The filing shows Churchill’s reporting address in Boca Raton, FL, and lists his relationship to the issuer as a director.
AMKOR TECHNOLOGY, INC. (AMKR) reporting person Gil C. Tily, identified as a director, received 27.3648 dividend-equivalent units (DEUs) credited on 09/23/2025 in respect of time-vested restricted stock units (RSUs) originally granted on May 15, 2025. Each DEU represents an additional RSU subject to the same terms as the underlying RSU.
The DEUs were issued with a reported price of $0 and, following the transaction, the reporting person beneficially owns 9,854.8917 shares of common stock in a direct ownership form. The Form 4 was signed via attorney-in-fact on 09/25/2025.
AMKOR TECHNOLOGY, INC. (AMKR) director David N. Watson received 27.3648 restricted stock units (RSUs) credited as dividend equivalent units (DEUs) tied to time‑vested RSUs, recorded as acquired on 09/23/2025 at a $0 price. The DEUs mirror the original RSU grant terms and increased Mr. Watson's direct beneficial ownership to 9,854.8917 shares. The transaction was reported by an attorney‑in‑fact on behalf of the reporting person. This filing documents a routine equity accrual tied to a dividend on the company's RSUs rather than an open‑market purchase or sale.
Robert R. Morse, a director of Amkor Technology, Inc. (AMKR), received dividend equivalent units that converted into additional restricted stock units on 09/23/2025. The filing reports two separate DEU accruals tied to previously granted time‑vested RSUs, resulting in acquisitions of 23.7001 and 27.3648 underlying shares respectively at a reported price of $0 per share. After these accruals, the reporting person beneficially owned 8,862.7341 and 9,854.8917 shares associated with those grants. The DEUs follow the same vesting provisions as the original RSU awards.
MaryFrances McCourt, a director of Amkor Technology, Inc. (AMKR), reported accruals of dividend equivalent units that converted into additional restricted stock units on 09/23/2025. Two separate DEU accruals were recorded: 23.7001 RSUs related to a grant originally dated 05/16/2023, and 27.3648 RSUs related to a grant originally dated 05/15/2025. Each accrued unit represents an additional RSU subject to the same terms as its underlying award. Both acquisitions were recorded at a $0 price and increased the reporting person’s beneficial holdings to 8,862.7341 and 9,854.8917 shares respectively. The Form 4 was signed by an attorney-in-fact, Mark N. Rogers, on 09/25/2025.
John D. Liu, a director of Amkor Technology, Inc. (AMKR), reported a non‑derivative acquisition on 09/23/2025 of 27.3648 restricted stock units (RSUs) recorded as dividend equivalent units (DEUs) related to time‑vested RSUs granted on May 15, 2025. The DEUs accrued upon a dividend payment and carry the same terms as the underlying RSUs. The reported price for the DEUs was $0 and the filing shows 9,854.8917 shares beneficially owned following the transaction. The Form 4 was signed by an attorney‑in‑fact on 09/25/2025.
Daniel J.L. Liao, a director of Amkor Technology (AMKR), recorded a Form 4 disclosing dividend equivalent units credited on time-vested restricted stock units. The filing shows that on 09/23/2025 the reporting person received 27.3648 restricted stock units (RSUs) as dividend equivalent units (DEUs) related to RSUs granted on 05/15/2025. The DEUs carry the same terms as the underlying RSUs and were entered at a price of $0. After the accrual the reporting person beneficially owned 9,854.8917 shares directly. The Form 4 was signed by an attorney-in-fact on behalf of Mr. Liao on 09/25/2025.
Guillaume M. J. Rutten, President and CEO and director of Amkor Technology (AMKR), reported a sale of 10,000 shares of AMKR common stock on 09/23/2025 at $30 per share under a pre-existing Rule 10b5-1 trading plan adopted on 06/06/2025. After the transaction, the reporting person beneficially owned 358,007 shares. The Form 4 was signed by an attorney-in-fact and indicates the sale was executed pursuant to the written plan, which provides an affirmative defense under Rule 10b5-1. No derivative transactions or other changes in ownership were reported on this filing.
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